: _cmd LCD_PORT_CMD PC! LCDWAIT ;
: _data! LCD_PORT_DATA PC! LCDWAIT ;
: _data@ LCD_PORT_DATA PC@ LCDWAIT ;
: LCDOFF 0x02 ( CMD_DISABLE ) _cmd ;
: _col! ( col -- )
    0x20 ( CMD_COL ) + _cmd ;
: _row! ( row -- )
    0x80 ( CMD_ROW ) + _cmd ;